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[-] obelisk_complex@piefed.ca 1 points 8 minutes ago

Hey, at least it put the raptor inside the raptor engine this time!

[-] DivineDev@piefed.social 11 points 1 hour ago

God I'm such an idiot, I always thought gravity pulled rockets downwards and you need to apply thrust to take off, but it's the other way around! You run the engines to stay on the ground and board the rocket, then just switch them off to start!

And the recursive raptor engine that contains itself three times, genius!

[-] dmention7@midwest.social 7 points 39 minutes ago

I think the really visionary point is that the crew goes inside the engine.

All these fucking nerd engineers have been putting the crew outside the engine for decades, to the point that some even put the crew on the opposite end of the rocket!

[-] Varcour@lemmy.zip 7 points 1 hour ago

Well, you see the gravity thing only works for the lower third of the rocket. Then gravity changes direction, that's why you need the engines to create thrust

[-] peoplebeproblems@midwest.social 5 points 2 hours ago

It is non-deterministic.

This is my biggest gripe with GenAI.

[-] Ummdustry@sh.itjust.works 8 points 3 hours ago

If only there were some kind automated tool to turn 3d models into orthographic & isometric drawings...

[-] Ash@piefed.social 21 points 5 hours ago

Aerodynamic drag helps accelerate the rocket up. Got it. And the rocket takes its own oxygen with it, and sucks methane from the air and space. I didnt realise gravity changes direction from top to bottom, then goes sideways (obviously the methane alters gravity). And great idea having the crew compartment in the combustion chamber... must stop the crew from getting cold.

[-] galoisghost@aussie.zone 46 points 6 hours ago

This is NOT a real engineering blueprint

That right there is comedy gold.

[-] purplemonkeymad@programming.dev 12 points 4 hours ago

I genuinely thought this was someone upset someone had said it was at first. Then the absolute gap in understanding that made that person think someone might actually mistake the picture for one.

[-] fizzle@quokk.au 31 points 6 hours ago

I kinda wonder what this person thinks people with jobs actually do all day.

Just kinda goof around, make doodles in your sketch book, you know... engineer stuff.

[-] lemmyng@piefed.ca 3 points 1 hour ago

Oh shit, at first I thought the person in the screenshot was mocking the AI's product, but they actually believe it's a good result?!

[-] fizzle@quokk.au 3 points 1 hour ago

Yeah. Their their grift is teaching people how to write prompts apparently.

[-] Tar_alcaran@sh.itjust.works 28 points 5 hours ago

Legit yes. AI boosters really think that.

They think programmers just type stuff. They think engineers just draw stuff. Mechanics just turn wrenches till stuff works again.

It's because these people don't know shit about fuck. That's why they think everyone's job can be done by AI. After all, AI can doodle and type and turn wrenches. Unlike their job, which is complex and nuanced.

[-] fizzle@quokk.au 6 points 4 hours ago

Unlike their job, which is complex and nuanced.

I don't think the person who wrote this does anything technical for a living. I think their job is some BS training shit show "we will teach you how to write prompts for LLMs" or something.

[-] Tar_alcaran@sh.itjust.works 10 points 4 hours ago

Oh, I agree. But THEY think their job is complex and nuanced.

[-] threelonmusketeers@sh.itjust.works 48 points 6 hours ago

Where should the crew compartment go?

On the engine, of course! Right above the HEALIZAIE and the FALT.

[-] slazer2au@lemmy.world 25 points 6 hours ago

How does gravity effect this? Well, that's the good part. near the heat shield it pushes from front to back, but near the thrusters is pushes back to front cancelling it out.

[-] Tar_alcaran@sh.itjust.works 18 points 5 hours ago

The gravity cancels out, letting aerodynamic drag lift the rocket into space.

[-] gnutrino@programming.dev 7 points 5 hours ago* (last edited 5 hours ago)

But don't forget to put the actual crew on the other side of the engine to the crew sections.

[-] fartographer@lemmy.world 5 points 6 hours ago

Where you're always one leak away from being horrifically oxidized or slurped through an engine.

[-] Mirshe@lemmy.world 1 points 42 minutes ago

Oh cool, we reinvented the Me-163 Komet.

[-] originalucifer@moist.catsweat.com 5 points 6 hours ago

or between two, stacked engines!

[-] one_old_coder@piefed.social 9 points 6 hours ago

Name and shame so that we can make fun of him.

[-] Kirp123@lemmy.world 7 points 6 hours ago* (last edited 6 hours ago)

Damn, didn't realize rockets ran on methane. Just like my stove.

[-] Alcoholicorn@mander.xyz 7 points 6 hours ago

Yes a lot of modern engines run on methane. It doesn't have to be as cold as H2 and its much more volume-dense.

Combustion is much less complicated than with kerosene and other big hydrocarbons.

[-] mkwt@lemmy.world 3 points 6 hours ago

Saturn V first stage ran RP-1, a kerosene fuel like Jet-A or JP8.

[-] Tar_alcaran@sh.itjust.works 5 points 5 hours ago

Yep, they went to the moon on fuel that could also run a truck (if you don't particularly care about still running it next week)

if you don't particularly care about still running it next week

Wouldn't RP-1 burn cleaner than run-of-the-mill diesel?

[-] Tar_alcaran@sh.itjust.works 3 points 4 hours ago* (last edited 4 hours ago)

Sure, the burning part isn't the problem.

Diesel has small amounts of lubricants, and those are very much needed for all the tiny little moving parts in fuel injectors and probably even in the engine itself. RP-1 doesn't have those.

Also, I know jet fuel will absolutely destroy just about every rubber not specifically designed for it, and that may apply to RP-1 as well.

Also, starting your rocket fuel car in winter is probably going to be a real chore, since the vaporization point is much higher, and modern cars don't come with preheaters that can handle that anymore (thanks to those fuel injectors).

this post was submitted on 21 Feb 2026
72 points (97.4% liked)

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